diff --git a/package-lock.json b/package-lock.json
index 7ccd3220d..61cafd1e5 100644
--- a/package-lock.json
+++ b/package-lock.json
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+              "optional": true,
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             "websocket": {
               "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-              "from": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+              "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+              "dev": true,
+              "optional": true,
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                 "nan": "^2.3.3",
@@ -18785,6 +19535,7 @@
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@@ -18799,13 +19550,15 @@
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               "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU=",
-              "dev": true
+              "dev": true,
+              "optional": true
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-              "resolved": "http://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
+              "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
               "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g=",
-              "dev": true
+              "dev": true,
+              "optional": true
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@@ -18834,7 +19587,7 @@
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-          "resolved": "http://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
+          "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
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@@ -18852,7 +19605,7 @@
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-          "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
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@@ -18863,13 +19616,15 @@
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-          "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+          "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+          "dev": true
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           "dev": true,
+          "optional": true,
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@@ -18893,6 +19648,7 @@
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           "dev": true,
+          "optional": true,
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@@ -18908,6 +19664,7 @@
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           "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -18917,6 +19674,7 @@
           "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
           "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
           "dev": true,
+          "optional": true,
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@@ -18936,11 +19694,12 @@
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           "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
-          "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+          "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc=",
+          "dev": true
         },
         "yargs": {
           "version": "4.8.1",
-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
           "integrity": "sha1-wMQpJMpKqmsObaFznfshZDn53cA=",
           "dev": true,
           "requires": {
@@ -18962,7 +19721,7 @@
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         "yargs-parser": {
           "version": "2.4.1",
-          "resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-2.4.1.tgz",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-2.4.1.tgz",
           "integrity": "sha1-hVaN488VD/SfpRgl8DqMiA3cxcQ=",
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@@ -26899,7 +27658,8 @@
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           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+          "optional": true
         },
         "tar": {
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@@ -26919,7 +27679,8 @@
         "yallist": {
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           "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.2.tgz",
-          "integrity": "sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k="
+          "integrity": "sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=",
+          "optional": true
         }
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@@ -27166,6 +27927,7 @@
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           "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -27544,7 +28306,8 @@
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           "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
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-          "dev": true
+          "dev": true,
+          "optional": true
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         "is-builtin-module": {
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@@ -27640,6 +28403,7 @@
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -27682,7 +28446,8 @@
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           "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
           "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-          "dev": true
+          "dev": true,
+          "optional": true
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         "lru-cache": {
           "version": "4.1.3",
@@ -27912,7 +28677,8 @@
           "version": "1.6.1",
           "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
           "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -38333,6 +39099,7 @@
       "resolved": "https://registry.npmjs.org/web3/-/web3-0.20.3.tgz",
       "integrity": "sha1-yqRDc9yIFayHZ73ba6cwc5ZMqos=",
       "requires": {
+        "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
         "crypto-js": "^3.1.4",
         "utf8": "^2.1.1",
         "xhr2": "*",
@@ -38341,7 +39108,7 @@
       "dependencies": {
         "bignumber.js": {
           "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934"
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git"
         }
       }
     },
@@ -38403,14 +39170,24 @@
           "integrity": "sha1-jZWCAsftuq6Dlwf7pvCf8ydgYhA=",
           "dev": true,
           "requires": {
-            "ethereumjs-abi": "git+https://github.com/ethereumjs/ethereumjs-abi.git#d84a96796079c8595a0c78accd1e7709f2277215",
+            "ethereumjs-abi": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
             "ethereumjs-util": "^5.1.1"
+          },
+          "dependencies": {
+            "ethereumjs-abi": {
+              "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#d84a96796079c8595a0c78accd1e7709f2277215",
+              "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
+              "dev": true,
+              "requires": {
+                "bn.js": "^4.10.0",
+                "ethereumjs-util": "^5.0.0"
+              }
+            }
           }
         },
         "ethereumjs-abi": {
           "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#d84a96796079c8595a0c78accd1e7709f2277215",
           "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
-          "dev": true,
           "requires": {
             "bn.js": "^4.10.0",
             "ethereumjs-util": "^5.0.0"
@@ -38426,7 +39203,6 @@
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
           "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-          "dev": true,
           "requires": {
             "bn.js": "^4.11.0",
             "create-hash": "^1.1.2",
diff --git a/package.json b/package.json
index 65380d3d9..e6bf038f1 100644
--- a/package.json
+++ b/package.json
@@ -258,7 +258,7 @@
     "fs-promise": "^2.0.3",
     "gaba": "1.0.0-beta.62",
     "ganache-cli": "^6.1.0",
-    "ganache-core": "^2.3.1",
+    "ganache-core": "^2.5.3",
     "geckodriver": "^1.14.1",
     "gh-pages": "^1.2.0",
     "gifencoder": "^1.1.0",